28851466615 has 16 divisors (see below), whose sum is σ = 36662401440. Its totient is φ = 21721047040.

The previous prime is 28851466613. The next prime is 28851466661. The reversal of 28851466615 is 51666415882.

It is not a de Polignac number, because 28851466615 - 2¹ = 28851466613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28851466613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1258455 + ... + 1281175.

It is an arithmetic number, because the mean of its divisors is an integer number (2291400090).

Almost surely, 2^28851466615 is an apocalyptic number.

28851466615 is a deficient number, since it is larger than the sum of its proper divisors (7810934825).

28851466615 is a wasteful number, since it uses less digits than its factorization.

28851466615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37682.

The product of its digits is 2764800, while the sum is 52.

The spelling of 28851466615 in words is "twenty-eight billion, eight hundred fifty-one million, four hundred sixty-six thousand, six hundred fifteen".